| 학회 |
한국화학공학회 |
| 학술대회 |
2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
| 권호 |
18권 2호, p.2670 |
| 발표분야 |
환경 |
| 제목 |
Enhanced response of SnO2-based thick film sensor by NiO promotor for the detection of di(propylene glycol) methyl ether |
| 초록 |
Sensing behaviors of SnO2-based thick film gas sensors were investigated under very low concentrations (ppb level) of a chemical agent simulant [DPGME, di(propylene glycol) methyl ether] in a flow system. The SnO2 gas sensor showed a low response of about 25%. To improve the response of the SnO2 sensor, new SnO2-based sensors promoted with NiO were prepared by physical mixing and impregnation methods. These sensors showed the responses of about 45% and 70%, respectively, at 0.1 ppm DPGME and 350oC. It is found that NiO promotor plays an important role in the response of SnO2-based sensors. NiO dispersion is also an important factor for the enhancement of the sensor response. In this study, we will discuss the sensing properties of SnO2-based sensor with preparation methods and the reason for the enhancement of sensor response. |
| 저자 |
황병욱1, 이수출1, 김성열1, 정석용1, 박병황2, 김주현2, 남성만3, 이덕동1, 김재창1
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| 소속 |
1경북대, 2국방과학(연), 3HKC |
| 키워드 |
thick film; SnO2; gas sensor; DPGME
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| E-Mail |
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| 원문파일 |
초록 보기 |
